Cavitybatt is a high-performance, non-combustible Glasswool insulation specially developed for steel frame structures, timber frame buildings and drywall systems. It features a glass tissue facing for increased rigidity and ease of installation. Designed to improve thermal efficiency, acoustic performance and indoor comfort, Cavitybatt reduces heat transfer, controls noise and enhances energy savings in both residential and commercial buildings.
• 51 mm (R-Value: 1.34 m²·K/W)
• 63 mm (R-Value: 1.66 m²·K/W)
• 100 mm (R-Value: 2.63 m²·K/W) — Steelframe batts
• 102 mm (R-Value: 2.68 m²·K/W) — Drywall batts
In Stock
| Property | Specification |
|---|---|
| Material | Glass Mineral Wool (Glasswool) |
| Facing | Glass Tissue Faced (one side) |
| Thermal Conductivity (k-value) | 0.038 W/m·K |
| R-Values | 51 mm — 1.34 m²·K/W 63 mm — 1.66 m²·K/W 100 mm — 2.63 m²·K/W 102 mm — 2.68 m²·K/W |
| Sizes (Drywall Batts) | 1200 × 600 mm |
| Sizes (Steelframe Batts) | 1200 × 400 mm |
| Fire Rating | Euroclass A1 / SANS 10177 Part 5 |
| Acoustic Performance | Exceptional sound absorption |
| Standards | ISO 9001, ISO 14001, EN 13501-1 |
Cavitybatt is designed for steel frame structures, timber frame buildings and drywall systems. It improves energy performance, reduces sound transmission and enhances indoor comfort by providing long-lasting thermal and acoustic insulation in both residential and commercial environments.
Yes. Cavitybatt is fully non-combustible and tested to SANS 10177 Part 5, EN 13823 and EN 13501-1 standards. It achieves a Euroclass A1 fire rating, offering superior fire safety for modern construction systems that require reliable fire performance.
Cavitybatt absorbs airborne sound and reduces transmission through walls and partitions. When installed correctly, it significantly improves indoor acoustic comfort, making it ideal for homes, offices, schools and hospitals where noise control is important.
Absolutely. It is specifically engineered for drywall cavity insulation and fits tightly between studs. Its glass tissue facing improves rigidity, handling and installation quality, helping drywall systems achieve excellent thermal and acoustic properties.
Thickness depends on performance requirements. 51–63 mm is suitable for standard drywall and timber frames, while 100–102 mm options provide higher R-values for enhanced thermal and acoustic performance in steel frame structures.
No. Cavitybatt is self-supporting and designed to maintain its shape throughout its lifetime. It does not sag, slump or degrade, ensuring long-term consistency in insulation performance and structural integrity.
Yes. Cavitybatt is ISO 14001 certified and manufactured with zero ozone-depleting potential and zero global warming potential. It helps reduce long-term energy consumption and is made from sustainable Glasswool materials.
Yes. Although designed for steel and timber frames, Cavitybatt may also be used in masonry cavity walls, provided installation follows recommended guidelines. It offers excellent thermal and acoustic benefits in such applications.
Minimal tools are required. A sharp knife is used for trimming and fitting around pipes or electrical conduits. The batts are sized to fit between studs, making installation fast and straightforward without specialized tools.
Store the product flat and under cover in a dry environment. Avoid heavy impacts, moisture exposure or compressing the batts, as these can affect long-term insulation performance and handling quality during installation.
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